Washing-Machine (open access)

Washing-Machine

Patent for a washing machine that also includes a wringer.
Date: August 13, 1912
Creator: Biggers, Samuel A.
Object Type: Patent
System: The Portal to Texas History
Rake. (open access)

Rake.

Patent for a rake with curved ends and multiple teeth that hold the material and keep it from going to the sides.
Date: August 15, 1916
Creator: Green, Ella M.
Object Type: Patent
System: The Portal to Texas History
Evaluating the Ground-Water Resources of the High Plains of Texas: Volume 2 (open access)

Evaluating the Ground-Water Resources of the High Plains of Texas: Volume 2

Second volume of a report documenting a study to map the High Plains aquifer and obtain data about various measurements and aspects of the aquifer. This volume provides "supporting basic data including records of wells and county maps depicting well locations, elevation of base of aquifer, elevation of water levels in 1980, and saturated thicknesses in 1980" for the northern third of the study area.
Date: August 1984
Creator: Knowles, Tommy; Nordstrom, Phillip & Klemt, William B.
Object Type: Report
System: The Portal to Texas History